迁移并重构项目，优化了执行流程

pkg/utils/apply.go

@@ -0,0 +1,71 @@
+package utils
+
+import (
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+
+	"github.com/go-acme/lego/v4/certcrypto"
+	"github.com/go-acme/lego/v4/certificate"
+	"github.com/go-acme/lego/v4/challenge"
+	"github.com/go-acme/lego/v4/lego"
+	"github.com/go-acme/lego/v4/registration"
+)
+
+func ApplyCert(domains []string, email string, provider challenge.Provider) ([]byte, []byte, error) {
+
+	privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	user := RegistrationUser{
+		Email: email,
+		Key:   privateKey,
+	}
+
+	config := lego.NewConfig(&user)
+	config.Certificate.KeyType = certcrypto.RSA2048
+	client, err := lego.NewClient(config)
+	if err != nil {
+		return nil, nil, err
+	}
+	err = client.Challenge.SetDNS01Provider(provider)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	_, err = client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
+	if err != nil {
+		return nil, nil, err
+	}
+
+	request := certificate.ObtainRequest{
+		Domains: domains,
+		Bundle:  true,
+	}
+
+	certResource, err := client.Certificate.Obtain(request)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return certResource.Certificate, certResource.PrivateKey, err
+}
+
+type RegistrationUser struct {
+	Email        string
+	Registration *registration.Resource
+	Key          crypto.PrivateKey
+}
+
+func (registrationUser *RegistrationUser) GetEmail() string {
+	return registrationUser.Email
+}
+func (registrationUser *RegistrationUser) GetRegistration() *registration.Resource {
+	return registrationUser.Registration
+}
+func (registrationUser *RegistrationUser) GetPrivateKey() crypto.PrivateKey {
+	return registrationUser.Key
+}

pkg/utils/kvp.go

@@ -0,0 +1,15 @@
+package utils
+
+import (
+	"strings"
+)
+
+type KVPair map[string]string
+
+func (kvp *KVPair) Set(str string) {
+	kvps := strings.Split(str, ",")
+	for _, i := range kvps {
+		kv := strings.SplitN(i, "=", 2)
+		(*kvp)[kv[0]] = kv[1]
+	}
+}

pkg/utils/request.go

@@ -0,0 +1,22 @@
+package utils
+
+import (
+	"crypto/tls"
+	"io"
+	"net/http"
+)
+
+func Request(method, urlStr string, body io.Reader, header http.Header) (*http.Response, error) {
+	req, _ := http.NewRequest(method, urlStr, body)
+	req.Header = header
+	client := http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+		},
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp, nil
+}